Disagree that Minton is suitable for (absolute) beginners. I speak from experience. Took my young lady on the exact route described above, (Forest ascent-back of the glider club-Pole bank-Minton Batch) and whilst I enjoyed it, the only bit she didn’t really enjoy was Minton Batch. She’s a fairly game lass, but some of the rocky bits right next to the drop down into the stream were a bit too technical and psyched her out a bit. She did it, but slooooowly… It all depends on how ‘beginner’ your beginner is, and also how keen they are to experience actual off road cycling (ooh that’s a bit technical/narrow/swoopy, need to apply a little more skill/balance than just riding off a kerb), as opposed to cycling in the counryside (ahh, pretty views, ooh look a sheep, this would be a nice spot for a picnic).
It IS for an actual beginner.
Long Mynd is a gorgeous place though; one of my absolute fave places in the world. Small Batch descent would be my reccommendation for an absolute beginner.